They summoned the goddess Yogamaya and experienced her transfer the fetus in the womb of Devaki into the womb of Rohini (Vasudeva's other wife who lived along with her sister Yashoda across the river Yamuna, from the village of cowherds at Gokulam). Hence the kid conceived in one womb was https://blissdriveteam.github.io/SouthernCaliforniaSurrogacy/Becoming-A-Surrogate-In-Southern-California